Combo problem of my backlight disappearing and random sleep mode?

Background: Twice last week I was on Facetime and the display went black (not sure if it was dim ala backlight or black) I could still hear the person speaking, hear my music, but no display.

Friday night I threw in two new memory sticks. Not related to any issues, just wanted to upgrade from the 1gb of factory RAM. Everything was working fine.

Saturday night. I was browsing the internet and about 10 minutes in, my screen went dim (not black, ala looking with a flashlight and you could still see some display.) After the display went black about 10 seconds later the machine went into sleep mode. I hit the space bar, it came out of sleep, the display did not come back (dim, not black) but after about 5 seconds it went back into sleep mode.

If you power down and power up via the power button the display will flash a dim white for about two seconds then go completely dim. I can barely see the apple logo. Tried to turn the brightness all the way down and all the way up trick numerous times. No dice.

Last night I got a flashlight out and tried to boot up and "get in" so I could see if there was anything I could do. Regardless of activity the machine just keeps going into sleep mode. Also, I noticed that upon boot, once it goes into sleep mode, two things... 1: It only goes into sleep once the log in screen shows up. 2: If you open and close the lid, it does not wake or sleep the machine.

What I've checked: I took out the new RAM and replaced with the old. Triple checked that it was seated right. Same problem. I've reset the PRAM and SMC multiple times.

Would it make sense that all at the same time my backlight or inverter or inverter cable took a dive the same time as the sleep sensor?

If it is the logic board, is there a means for me to test it?

I'm assuming my board is toast. But, it would make sense to repair/replace the cheapest options first. Right? This screams hardware failure. But right about the same time I noticed a few people posting the same thing on various other forums. No one is answering. I wonder if people are too afraid to send them the telegram that their soldier has died in combat.

2 Answers

I saw this problem many times on machines that had a liquid spilled on them. Is it the case with yours ?

First troubleshooting step would be to boot from your installation disk (or external drive) to try to determine if the problem is software or hardware related. If you can boot successfully with the installation disk then the problem is software and you'll need to reinstall the system.

Don't want to be the guy that send the telegram about the dead soldier but most of the times the problem you describe is hardware related. If you're lucky, replacing the battery charging board could solve the problem (this part also manage the sleep system) but before replacing it I would take off the top case and try to boot the MB directly from the logic board by bridging the two power pads located at the base of the fan. It's an easy way to know If the problem comes from the top case.

I know it's a "technical" answer and maybe you're not ready to open the machine and work in it but that's what I would do and it's the only answer I can post other than "bring it to a shop". Good luck...

I bought this laptop used a few months ago. The fan was a bit noisy so I had it open in less than a week of owning it. I'm not scared :)

I did not spill any liquid on it. Unless my girlfriend or dog spilled something on it and haven't told me.

And guess who doesn't have their install discs? This guy. I've been meaning to get some replacements. Just haven't got around to it. I'll try all of this and get back to you. Thanks for the response!!!!

EDIT: Also, I saw that the sleep sensor is "mated" with the battery charging unit. Funny thing because my physical battery shows 3 green dots, yet when plugged in it's a no go. Maybe I'll get a double dose of goodness if I replace this part. But, I'll start with the software.

I tried the software, no dice. I just replaced the inverter and the inverter cable, no display still. I did try to go cheap and buy parts off an auction site. I don't know how to test the board and cable so I suppose I should either learn how, or buy more reputable parts.

My new battery charging board should be here tomorrow or Thursday. I will update as that goes in.

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New York,

New Yorkers stand up for what they believe in. And we're asking you to
stand up for repair.

This year, New York could be the first state in the nation to pass the Fair Repair Act,
A8192 and
S618.
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It's time to speak out for your right to repair.

Nebraska,

This year, the people of Nebraska have a chance to guarantee
their right to repair their equipment—like tractors, farm equipment,
digital equipment, and even cell phones.

It’s yours. You own it. You shouldn’t have to beg the manufacturer
for permission to fix it when it breaks. The Fair Repair Act, or LB 67,
is simple. It requires manufacturers to provide owners and independent
repair businesses with fair access to service information and replacement
parts. So you can fix the stuff you own quickly—and get back on with your
life.

But manufacturers don’t like that idea. When
your tractor breaks or your cell phone stops working, they want to be the
only people who can fix it. And they get to set whatever prices they want
for parts and service.

It’s time to fight for your right to repair and defend local repair jobs—the
corner mom-and-pop repair shops that keep getting squeezed out. Find
out who represents you in the Nebraska state legislature. Tell them you support
the bipartisan Fair Repair Act, LB 67. Tell them that you believe repair
should be fair, affordable, and accessible. Stand up for the right to repair
in Nebraska.

It's time to speak out for your right to repair

Dear Minnesotans,

Minnesota has a chance to become the first state in the nation to pass
"Fair Repair" legislation. SF 15, or the Fair Repair bill, guarantees our
right to repair digital equipment like computers, refrigerators, cell phones
and tractors. It requires manufacturers to provide owners and independent
repair shops with access to repair information and replacement parts—so you
have the resources you need to fix things quickly and affordably.

But we need your help. Manufacturers don’t want a Fair Repair bill. When
your tractor breaks or your cell phone stops working, they want to be the
only people who can fix it. And they get to set whatever prices they want.

Find out who represents you in Minnesota's legislatures. Tell them that
you want the right to repair your purchases. Tell them you support a
bipartisan Fair Repair bill, SF 15. Tell them repair is good for the
environment, good for consumers, and good for businesses.

It's time to speak out for your right to repair

Dear Kansans,

Kansas has a chance to become the first state in the nation to pass
"Fair Repair" legislation. HB 2122, or the Fair Repair Act, guarantees our
right to repair digital equipment like computers, refrigerators, cell phones
and tractors. It requires manufacturers to provide owners and independent
repair shops with access to repair information and replacement parts—so you
have the resources you need to fix things quickly and affordably.

But we need your help. Manufacturers don’t want a Fair Repair bill. When
your tractor breaks or your cell phone stops working, they want to be the
only people who can fix it. And they get to set whatever prices they want.

Find out who represents you in Kansas' legislature. Tell them that
you want the right to repair your purchases. Tell them you support a
bipartisan bill. Tell them repair is good for farmers, good for consumers, and good for businesses.

It's time to speak out for your right to repair

Dear Wyomingites,

Wyoming has a chance to become the first state in the nation to pass
"Fair Repair" legislation. HB 199, or the Fair Repair Act, guarantees our
right to repair digital equipment like computers, refrigerators, cell phones
and tractors. It requires manufacturers to provide owners and independent
repair shops with access to repair information and replacement parts—so you
have the resources you need to fix things quickly and affordably.

But we need your help. Manufacturers don’t want a Fair Repair bill. When
your tractor breaks or your cell phone stops working, they want to be the
only people who can fix it. And they get to set whatever prices they want.

Find out who represents you in Wyoming's legislature. Tell them that
you want the right to repair your purchases. Tell them you support a
bipartisan bill. Tell them repair is good for farmers, good for consumers, and good for businesses.

It's time to speak out for your right to repair

Dear Washingtonians,

Washington has a chance to become the first state in the nation to pass
"Fair Repair" legislation. The Fair Repair Act guarantees our
right to repair digital equipment like computers, refrigerators, cell phones
and tractors. It requires manufacturers to provide owners and independent
repair shops with access to repair information and replacement parts—so you
have the resources you need to fix things quickly and affordably.

But we need your help. Manufacturers don’t want a Fair Repair bill. When
your tractor breaks or your cell phone stops working, they want to be the
only people who can fix it. And they get to set whatever prices they want.

Find out who represents you in Washington's legislature. Tell them that
you want the right to repair your purchases. Tell them you support a
bipartisan bill. Tell them repair is good for farmers, good for consumers, and good for businesses.

It's time to speak out for your right to repair

Tennessee,

This year, the people of Tennessee have a chance to guarantee their
right to repair their equipment—like tractors, farm equipment, digital
equipment, and even cell phones.

It's yours. You own it. You shouldn't have to beg the manufacturer
for permission to fix it when it breaks. The Fair Repair Act is simple.
It requires manufacturers to provide owners and independent repair
businesses with fair access to service information and affordable replacement
parts. So you can fix the stuff you own quickly—and get on with your life.

But manufacturers don't like that idea. When your tractor breaks or
your cell phone stops working, they want to be the only people who can
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jobs—the corner mom-and-pop repair shops that keep getting squeezed out.
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This year, the people of Illinois have a chance to guarantee their
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It's yours. You own it. You shouldn't have to beg the manufacturer
for permission to fix it when it breaks. The Digital Fair Repair Act is simple.
It requires manufacturers to provide owners and independent repair
businesses with fair access to service information and affordable replacement
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But manufacturers don't like that idea. When your tractor breaks or
your cell phone stops working, they want to be the only people who can
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jobs—the corner mom-and-pop repair shops that keep getting squeezed
out. Find out who represents you in the Illinois General Assembly. Tell
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Tell them that you believe repair should be fair, affordable, and
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Iowa,

This year, the people of Iowa have a chance to guarantee their
right to repair their equipment—like tractors, farm equipment, digital
equipment, and even cell phones.

It's yours. You own it. You shouldn't have to beg the manufacturer
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It requires manufacturers to provide owners and independent repair
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parts. So you can fix the stuff you own quickly—and get on with your life.

But manufacturers like John Deere and Apple don't like that idea. When your tractor breaks or
your cell phone stops working, they want to be the only people who can
fix it. And they get to set whatever prices they want for parts and
service.

It's time to fight for your right to repair and defend local repair
jobs—the corner mom-and-pop repair shops that keep getting squeezed
out. Find out who represents you in the Iowa legislature. Tell
them you support the Right to Repair Act, HF556.
Tell them that you believe repair should be fair, affordable, and
accessible. Stand up for the right to repair in Iowa.

It's time to speak out for your right to repair

North Carolina,

This year, the people of North Carolina have a chance to guarantee their
right to repair their equipment—like tractors, farm equipment, digital
equipment, and even cell phones.

It's yours. You own it. You shouldn't have to beg the manufacturer
for permission to fix it when it breaks. North Carolina's Fair Repair Act, H. 663, is simple.
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parts. So you can fix the stuff you own quickly—and get on with your life.

But manufacturers like John Deere and Apple don't like that idea. When your tractor breaks or
your cell phone stops working, they want to be the only people who can
fix it. And they get to set whatever prices they want for parts and
service.

It's time to fight for your right to repair and defend local repair
jobs—the corner mom-and-pop repair shops that keep getting squeezed
out. Find out who represents you in the North Carolina legislature. Tell
them you support the Fair Repair Act, H. 663.
Tell them that you believe repair should be fair, affordable, and
accessible. Stand up for the right to repair in North Carolina.

It's time to speak out for your right to repair

Missouri,

This year, the people of Missouri have a chance to guarantee their
right to repair their equipment—like tractors, farm equipment, digital
equipment, and even cell phones.

It's yours. You own it. You shouldn't have to beg the manufacturer
for permission to fix it when it breaks. Missouri's Fair Repair Act, HB1178, is simple.
It requires manufacturers to provide owners and independent repair
businesses with fair access to service information and affordable replacement
parts. So you can fix the stuff you own quickly—and get on with your life.

But manufacturers like John Deere and Apple don't like that idea. When your tractor breaks or
your cell phone stops working, they want to be the only people who can
fix it. And they get to set whatever prices they want for parts and
service.

It's time to fight for your right to repair and defend local repair
jobs—the corner mom-and-pop repair shops that keep getting squeezed
out. Find out who represents you in the Missouri legislature. Tell
them you support the Fair Repair Act, HB1178.
Tell them that you believe repair should be fair, affordable, and
accessible. Stand up for the right to repair in Missouri.

It's time to speak out for your right to repair

New Hampshire,

This year, the people of New Hampshire have a chance to guarantee their
right to repair their equipment—like tractors, farm equipment, digital
equipment, and even cell phones.

It's yours. You own it. You shouldn't have to beg the manufacturer
for permission to fix it when it breaks. New Hampshire's upcoming Right to Repair Act is simple.
It requires manufacturers to provide owners and independent repair
businesses with fair access to service information and affordable replacement
parts. So you can fix the stuff you own quickly—and get on with your life.

But manufacturers like John Deere and Apple don't like that idea. When your tractor breaks or
your cell phone stops working, they want to be the only people who can
fix it. And they get to set whatever prices they want for parts and
service.

It's time to fight for your right to repair and defend local repair
jobs—the corner mom-and-pop repair shops that keep getting squeezed
out. Find out who represents you in the New Hampshire legislature. Tell
them you support the Right to Repair Act.
Tell them that you believe repair should be fair, affordable, and
accessible. Stand up for the right to repair in New Hampshire.

It's time to speak out for your right to repair

New Jersey,

This year, the people of New Jersey have a chance to guarantee their
right to repair their equipment—like tractors, farm equipment, digital
equipment, and even cell phones.

It's yours. You own it. You shouldn't have to beg the manufacturer
for permission to fix it when it breaks. New Jersey's upcoming Fair Repair Act, A4934 is simple.
It requires manufacturers to provide owners and independent repair
businesses with fair access to service information and affordable replacement
parts. So you can fix the stuff you own quickly—and get on with your life.

But manufacturers like John Deere and Apple don't like that idea. When your tractor breaks or
your cell phone stops working, they want to be the only people who can
fix it. And they get to set whatever prices they want for parts and
service.

It's time to fight for your right to repair and defend local repair
jobs—the corner mom-and-pop repair shops that keep getting squeezed
out. Find out who represents you in the New Jersey legislature. Tell
them you support the Fair Repair Act, A4934.
Tell them that you believe repair should be fair, affordable, and
accessible. Stand up for the right to repair in New Jersey.